Earticle

시각적 표현은 문제해결을 이끄는 안내자의 역할을 수행하며, 문제해결의 결정적 단서를 제공하는 유용한 도구이다. 수학과 교수-학습에서 교사는 시각적 표현의 중요성을 강조하여야 하며, 아동은 문제상황에 대한 감각을 길러야 한다. 따라서 본 연구의 목적은 아동이 문제해결 과정에서 사용하는 시각적 표현의 특징을 분석하고 성공적으로 문제를 해결한 학생들의 표현 유형을 정리하여, 아동이 문제에서 제시하는 여러 가지 조건을 적절한 시각적 표현 방법으로 조직화하게 하는데 시사점을 주고자 하는데 있다. 이러한 연구 목적을 달성하기 위하여 아동의 문제해결지를 분석한 결과, 초등 수학 문제해결 과정에서 대부분의 아동은 다양한 방법으로 조건을 표현하는데 익숙하지 못하였으며 시행착오 단계를 거치지 않고 처음 선택한 전략을 끝까지 사용하는 경향을 보여 문제를 읽고 생긴 처음 이미지가 문제해결에 중요한 영향을 끼친다는 것을 알았다. 또한 성공적으로 문제를 해결한 아동은 계산식에 의존하기보다는 여러 가지 정보를 해결할 수 있는 형태로 표현하여 문제를 해결하였으며, 문제해결 과정을 직관적으로 파악할 수 있을 정도의 명료하고 조직화된 그림을 그린다는 것을 알 수 있었다.

The purpose of this study is to examine the characteristics of visual representation used in problem solving process and examine the representation types the students used to successfully solve the problem and focus on systematizing the visual representation method using the condition students suggest in the problems. To achieve the goal of this study, following questions have been raised. (1) what characteristic does the representation the elementary school students used in the process of solving a math problem possess? (2) what types of representation did students use in order to successfully solve elementary math problem? 240 4th graders attending J Elementary School located in Seoul participated in this study. Qualitative methodology was used for data analysis, and the analysis suggested representation method the students use in problem solving process and then suggested the representation that can successfully solve five different problems. The results of the study as follow. First, the students are not familiar with representing with various methods in the problem solving process. Students tend to solve the problem using equations rather than drawing a diagram when they can not find a word that gives a hint to draw a diagram. The method students used to restate the problem was mostly rewriting the problem, and they could not utilize a table that is essential in solving the problem. Thus, various errors were found. Students did not simplify the complicated problem to find the pattern to solve the problem. Second, the image and strategy created as the problem was read and the affected greatly in solving the problem. The first image created as the problem was read made students to draw different diagram and make them choose different strategies. The study showed the importance of first image by most of the students who do not pass the trial and error step and use the strategy they chose first. Third, the students who successfully solved the problems do not solely depend on the equation but put them in the form which information are decoded. They do not write difficult equation that they can not solve, but put them into a simplified equation that know to solve the problem. On fraction problems, they draw a diagram to solve the problem without calculation, Fourth, the students who. successfully solved the problem drew clear diagram that can be understood with intuition. By representing visually, unnecessary information were omitted and used simple image were drawn using symbol or lines, and to clarify the relationship between the information, numeric explanation was added. In addition, they restricted use of complicated motion line and dividing line, proper noun in the word problems were not changed into abbreviation or symbols to clearly restate the problem. Adding additional information was useful source in solving the problem.

이 연구는 20세기 말 거의 같은 시기에 개정된 한국과 일본의 초등학교 수학과 교육과정 및 그 해설서를 비교하여, 차후 한국의 교육과정과 해설서 개발에 도움을 얻기 위함이다. 첫째로, 한국의 초등학교 수학과 교육과정은 학문의 체계와 학습의 우열 및 발전 의지를, 일본은 수학의 일상생활에의 적용과 수학 학습의 즐거움을 중시한 것으로 나타나고 있다. 둘째로, 일본의 산수과 교육과정 해설서는 한국에 비해, 교육과정의 개정에 초점을 맞추어 산수과 목표를 세분하여 구체적으로 해설하고 있다. 각 내용 영역에 대한 전체적 목표를 진술하고 학년별 내용의 관련을 표로 만들어 제시한 것은 좋은 점으로 생각된다. 끝으로, 일본은 초등학교 수학과 교육과정 해설서의 학년별 목표에서, 교육과정에 제시된 산수과의 목표를 일관성있게 반영하면서 큰 틀만을 개략하고 있는데. 이는 교과서 제작에서 융통성과 창작성 발휘를 기대하는 배려로 생각할 수 있다.

In this study I compared Korea's elementary school mathematics curriculum and its handbook with Japan's curriculum and its handbook. Based on that work, I induced some suggestions which is useful to develop mathematics curriculum in the future. First, the purposes of Korea's elementary school mathematics curriculum focused on the system of mathematics, scholastic ability and learning volition. On the other hand, Japan's curriculum concentrated on the utility of mathematics in daily life and the motive of learning mathematics. Secondly, purposes of mathematics education written in Japan's curriculum handbook, differing from Korea's, are closely divided into concrete items. Finally, purposes of mathematics education in each grade, written in Japan's curriculum handbook, are presented in outlined form according to general purpose of mathematics curriculum. The merit of this way is that the researcher could display flexibilities and creativities in making mathematics textbook.

수학 용어를 바르게 이해하고 가르친다는 것은 수학 학습의 모든 것이라고 말할 수 있을 만큼 중요한 부분을 차지한다고 할 수 있다. 이러한 이유에서 학생들이 수학 교과서에 나오는 수학 용어에 대해 얼마만큼 정확하게 그 의미를 이해하고 있는지 살펴보고, 어려움을 느끼는 용어에 대해서는 그 원인을 찾아보아야 할 필요가 있다. 이에 본 연구에서는 초등 수학 교과서 도형 영역에 사용되고 있는 수학 용어를 조사하고 각 용어에 대한 학생들의 이해 정도를 분석해 보았다.

As what exactly understands a meaning of mathematics terms, is a starting point of mathematical thinking, it plays a very important role in the mathematics learning. What understood mathematics terms which were defined here, includes not only the terms of comprising its definition, but also all of the understanding in context, situation, intention and purpose, which came to give its definition. Due to this reason, it needs to be examined how much students are correctly understanding about mathematics terms which appear in the texts, and to seek for its cause for the terms which are felt to be difficult. Accordingly, this study investigated into mathematics terms which are used for the field of geometry in the elementary school mathematics textbooks, and tried to analyze students' understanding level about each term.

제7차 수학과 교육과정의 6개 영역 중 측정 영역은 수학의 실용적 가치의 측면에서 강조되고 있다. 이 중 삼각형과 사각형의 넓이 지도는 통합적인 수학적 능력이 요구되고, 측정 영역의 후속 단계 학습의 기초가 되므로 중요한 교수학적 의미를 가진다. 따라서 본 연구에서는 우리나라 제1차 교육과정에서부터 제7차 교육과정에 따른 초등학교 수학 교과서에 나타난 삼각형과 사각형의 넓이 지도 방법을 (1) 넓이의 개념과 (2) 삼각형과 사각형의 넓이 공식으로 나누어 범주를 구성하고, 지도시기 및 지도 순서와 지도 방법을 교수학적 변환의 관점에서 분석하였다.

The purpose of this study is to delve into how elementary mathematics textbooks deal with the areas of triangles and quadrilaterals from a viewpoint of the Didactic Transposition Theory. The following conclusion was derived about the teaching of the area concept: The area concept started to be taught perfectly in the 7th curricular textbook, and the focus of area teaching was placed on the area concept, since learners were gradually given opportunities to compare and measure areas. As to the area formulae of triangles and quadrilaterals, the following conclusions were made: First, the 1st curricular, the 2nd curricular and the 3rd curricular textbooks placed emphasis on transposition by textbooks, and the 4th curricular, the 5th curricular and the 6th curricular textbooks accentuated transposition by teachers. The 7th curricular textbooks put stress on knowledge construction by learners; Second, the focus of teaching shifted from a measurement of area to inducing learners to make area formula. Namely, the utilization of area formula itself was accentuated, while algorithm was emphasized in the past; Third, the way to encourage learners to produce area formula changed according to the curricula and in light of learners' level, but a wide range of teaching devices related to the area formulae were removed, which resulted in offering less learning chances to students; Fourth, what to teach about the areas of triangles and quadrilaterals was gradually polished up, and the 7th curricular textbooks removed one of the overlapped area formula of triangle.

구성주의 관점에 의하면 수학적 지식은 교사가 일방적으로 전수하는 것이 아니라 학생들이 자발적인 방법으로 스스로의 지식을 형성해 가는 것이다. 특히 사회적 구성주의에서는 사회구성원간의 의사소통을 통해 수학지식이 형성됨을 강조하고 있다. 일반적으로 학생들의 의사소통은 소집단 협동학습의 환경에서 가장 활발하게 이루어진다. 문제해결을 위해 학생들은 각자의 생각을 교환하고 자유롭게 질문하며 상호간의 사고와 개념을 명확하게 하고 의미 있는 방법으로 서로의 학습에 도움을 주게 된다. 본 연구에서는 6학년 학생들이 수학적 논의를 하는 과정에서 사용하는 의사소통의 수단을 언어와 행동의 관점으로 분석하여 매 수업 장면에서는 관찰하기 어려운 소집단 협동학습 내의 집단적인 역학관계를 파악하고자 한다.

The purpose of this thesis was to analyze communicational means of mathematical communication in perspective of languages and behaviors. Research questions were as follows; First, how are the characteristics of mathematical languages in communicating process of mathematical small group learning? Second, how are the characteristics of behaviors in communicating process of mathematical small group learning? The analyses of students' mathematical language were as follows; First, the ordinary language that students used was the demonstrative pronoun in general, mainly substituted for mathematical language. Second, students depended on verbal language rather than mathematical representation in case of mathematical communication. Third, quasi-mathematical language was mainly transformed in upper grade level than lower grade, and it was shown prominently in shape and measurement domain. Fourth, In mathematical communication, high level students used mathematical language more widely and initiatively than mid/low level students. Fifth, mathematical language use was very helpful and interactive regardless of the student's level. In addition, the analyses of students' behavior facts were as follows; First, students' behaviors for problem-solving were shown in the order of reading, understanding, planning, implementing, analyzing and verifying. While trials and errors, verifying is almost omitted. Second, in mathematical communication, while the flow of high/middle level students' behaviors was systematic and process-directed, that of low level students' behaviors was unconnected and product-directed.